We look at the division of 223521 by 77 
Our goal is to divide 223521 by 77.

Step 1:
If we divide 2 by 77, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (2) from the dividend after 2, then repeat: 22 / 77

Moving on to step 2:
77 goes into 22 0 times with a remainder of 22.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 22 leaves us with 22.
Append the next digit (3) from the dividend to 22 and continue with: 223 / 77

Moving on to step 3:
77 goes into 223 2 times with a remainder of 69.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 154 away from 223, we end up with 69.
Fetch the next digit (5) from the dividend, attach it to 69 and continue: 695 / 77

Let's proceed to step 4:
695 divided by 77 is 9 with a remainder of 2.
The next digit of our result is 9. 
Result so far: 29.0
If we subtract 693 from 695, we get 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 77

Moving on to step 5:
77 can be fit into 22 0 times, resulting in a remainder of 22.
The next digit of our result is 0. 
Result so far: 290.0
Subtract 0 from 22 to get 22.
Take the next digit (1) from the dividend and append it to 22, then repeat: 221 / 77

Step 6:
77 goes into 221 2 times with a remainder of 67.
Use 2 as the next digit of our solution. 
Result so far: 2902.0
Subtract 154 from 221 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 7:
670 divided by 77 is 8 with a remainder of 54.
The next digit of our result is 8. 
Result so far: 2902.8
The remainder is 54 after subtracting 616 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 8:
When dividing 540 by 77, we get 7 with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 2902.87
Deduct 539 from 540 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 9:
If we divide 10 by 77, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 2902.87
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
77 can be fit into 100 1 times, resulting in a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 2902.8701
Subtract 77 from 100 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 11:
230 divided by 77 is 2 with a remainder of 76.
The number 2 becomes the next digit in our result. 
Result so far: 2902.87012
The remainder is 76 after subtracting 154 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 12:
77 goes into 760 9 times with a remainder of 67.
Write down 9 as next digit of the result. 
Result so far: 2902.870129
Deduct 693 from 760 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 13:
77 goes into 670 8 times with a remainder of 54.
Use 8 as the next digit of our solution. 
Result so far: 2902.8701298
If we subtract 616 from 670, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 14:
540 divided by 77 is 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 2902.87012987
Subtracting 539 from 540 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The quotient of the division is 2902.87012987, and the remainder is 1e-09.